"Video captured by a KCAL-TV crew showed a chaotic scene in which officers fired beanbag rounds as some people ducked to the ground while others scattered screaming. A man is seen yelling at an officer even as a weapon is pointed at him; two adults huddled to shield a boy and girl. Meanwhile, a police dog ran into several people sitting on the grass, including a woman and child in a stroller, before biting a man in the arm."